IP

Converts an IPv4 address from string to an integer. This allows performing mathematical operations with the IP address.

dnsconfig.js

var addrA = IP("1.2.3.4")
var addrB = addrA + 1
// addrB = 1.2.3.5

NOTE: IP() does not accept IPv6 addresses (PRs gladly accepted!). IPv6 addresses are simply strings:

dnsconfig.js

// IPv4 Var
var addrA1 = IP("1.2.3.4");
var addrA2 = "1.2.3.4";

// IPv6 Var
var addrAAAA = "0:0:0:0:0:0:0:0";